Integer overflow in the macro ROUND_UP (n, d) in Quick Emulator (Qemu) allows a user to cause a denial of service (Qemu process crash).
https://www.debian.org/security/2018/dsa-4213
https://usn.ubuntu.com/3575-1/
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=2098b073f398cd628c09c5a78537a6854